linux-kernel - [PATCH 2/2] ASoC: core: fix the memory leak in case of remove_aux

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1356454652.21958.4.camel@cliu38-desktop-build>
Date:	Wed, 26 Dec 2012 00:57:32 +0800
From:	Chuansheng Liu <chuansheng.liu@...el.com>
To:	broonie@...nsource.wolfsonmicro.com
Cc:	lrg@...com, perex@...ex.cz, tiwai@...e.de,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
	chuansheng.liu@...el.com
Subject: [PATCH 2/2] ASoC: core: fix the memory leak in case of
 remove_aux_dev()


When probing aux_dev, initializing is as below:
device_initialize()
device_add()

So when remove aux_dev, we need do as below:
device_del()
device_put()
Otherwise, the rtd_release() will not be called.

So here using device_unregister() to replace device_del(),
like the action in soc_remove_link_dais().
Signed-off-by: liu chuansheng <chuansheng.liu@...el.com>
---
 sound/soc/soc-core.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9689411..2270f8f 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1556,7 +1556,7 @@ static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
 	/* unregister the rtd device */
 	if (rtd->dev_registered) {
 		device_remove_file(rtd->dev, &dev_attr_codec_reg);
-		device_del(rtd->dev);
+		device_unregister(rtd->dev);
 		rtd->dev_registered = 0;
 	}
 
-- 
1.7.0.4



--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/